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    Biocompatible wound dressing
    11.
    发明授权
    Biocompatible wound dressing 有权
    生物相容伤口敷料

    公开(公告)号：US07763769B2

    公开(公告)日：2010-07-27

    申请号：US11409116

    申请日：2006-04-21

    申请人： Royce W. Johnson ,  David M. Tumey

    发明人： Royce W. Johnson ,  David M. Tumey

    IPC分类号： A61F13/00 ,  A61M35/00

    CPC分类号： A61F13/0203 ,  A61M1/0088

    摘要： A biocompatible wound dressing comprised of a pad for insertion substantially into a wound site and a wound drape for sealing enclosure of the foam pad at the wound site. The pad, comprised of a foam or other like material having relatively few open cells in contact with the areas upon which cell growth is to be encouraged so as to avoid unwanted adhesions, but having sufficiently numerous open cells so that drainage and negative pressure therapy may continue unimpaired, is placed in fluid communication with a vacuum source for promotion of fluid drainage, as known in the art. The pad is further comprised of an ultra-low density fused-fibrous ceramic, or a bioabsorbable branched polymer, or cell growth enhancing matrix or scaffolding.

    摘要翻译： 一种生物相容性伤口敷料，其包括用于基本上插入伤口部位的垫，以及用于密封伤口部位上泡沫垫的外壳的伤口罩。 衬垫由泡沫或其他类似材料组成，具有相对较少的开放细胞与鼓泡细胞生长的区域相接触，以避免不必要的粘连，但是具有足够多的开放细胞，使得排泄和负压治疗可以 继续未受损，与本领域已知的用于促进流体排出的真空源流体连通。 该垫还包括超低密度熔融纤维陶瓷或生物可吸收支化聚合物，或细胞生长增强基质或脚手架。

    Method and apparatus for estimation of beat-to-beat pulmonary wedge pressure
    15.
    发明授权
    Method and apparatus for estimation of beat-to-beat pulmonary wedge pressure 有权
    用于估计搏动搏动肺楔压力的方法和装置

    公开(公告)号：US6113548A

    公开(公告)日：2000-09-05

    申请号：US371326

    申请日：1999-08-10

    申请人： Bennet P. deBoisblanc ,  Royce W. Johnson ,  Andy Pellett ,  Glenn B. Bell

    发明人： Bennet P. deBoisblanc ,  Royce W. Johnson ,  Andy Pellett ,  Glenn B. Bell

    IPC分类号： A61B5/0215 ,  A61B5/02

    CPC分类号： A61B5/0215 ,  A61B5/7267 ,  A61B5/7239

    摘要： A medical device for estimation of pulmonary wedge pressure wherein a non-occluded pulmonary artery blood pressure measurement is utilized to directly estimate the pulmonary wedge pressure. A neural network is trained with occlusion-obtained data, whereafter the trained coefficients are utilized to implement the wedge pressure estimator. A flow-directed catheter is utilized to transduce the pressure waveform, which is then input to the processing computer through a analog-to-digital data acquisition board. The data is preprocessed in the computer in order to present the neural network with 11 samples of blood pressure data and 11 samples of time-correlated first derivatives of the blood pressure data as well as an indication of the length in time of the heartbeat. The trained neural network then directly outputs the estimated wedge pressure.

    摘要翻译： 用于估计肺楔压的医疗装置，其中使用非闭塞的肺动脉血压测量来直接估计肺楔压。 用闭塞获得的数据训练神经网络，然后利用训练的系数来实现楔形压力估计器。 使用流动导管来转换压力波形，然后通过模拟数字数据采集板将其输入到处理计算机。 数据在计算机中进行预处理，以便向神经网络提供11个血压数据样本和11个血压数据的时间相关一阶导数样本以及心跳时间长度的指示。 然后训练出的神经网络直接输出估计的楔形压力。